Working in IT, a smart phone is a must... I can vpn into my company with it, ssh to log into unix servers and routers from anywhere.
If I wasnt in th is field, I'm with Vince, and shitty phone to make calls would be fine for me. Not a gadget guy by any means.
I have a Samsung Note 4 and only use it for those few things I mentioned (work stuff and texting with my family, easy way to keep in touch).